<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>属性选择器</title>
    <style>
        [type]{
            color: red;
        }

        [type=password]{
            color: blue;
        }
    </style>

</head>
<body>

用户名：<input type="text"/> <br/>
密码：<input type="password"/> <br/>
邮箱：<input type="email"/> <br/>

</body>
</html>